Pipenv brings together pip and virtualenv under one command line interface. It automatically creates and manages a virtual environment for your projects, as well as adds/removes packages from your Pipfile as you install/uninstall packages. It also generates the Pipfile.lock, which is used to produce deterministic builds and create a snapshot of your working environment. Create a pipenv interpreter and use `pipenv install <package>` to update Pipfile, which keeps track of dependencies, eliminating the need for a traditional dependencies.txt. If you're using a version control system like Git, always remember to add `venv/` (or the name of your virtual environment directory) to your `.gitignore` file to prevent it from being tracked.